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List:       linux-aacraid-devel
Subject:    RE : OS reccomendations
From:       "Jonah Kowall" <jkowall () psteering ! com>
Date:       2001-11-12 12:05:00
[Download RAW message or body]

I haven't tried ext3 with the perc cards yet.  I have tried it on
regular disks.  I haven't tried freebsd on a perc card yet, but since we
use server side java here, and freebsd's java support is poor at best
its not an option for us.

We run on 2.4.9 as well, but as ext3 will be in the next kernel release
and not require a patch we may upgrade when that is released.

I may be upgrading to ext3 on a machine in the next few weeks that has
the perc.  I love the driver, very nice work Matt.



Message: 1
Date: Sun, 11 Nov 2001 01:29:45 -0400 (AST)
From: Cody Swanson <cody@ice.com>
To: <linux-aacraid-devel@dell.com>
Subject: OS recommendations...

	Hi,


	I am the sysadmin for a large e-commerce site and we use
PowerEdge 6450's with PERC2/Si controllers for our mySQL database apps.
We currently use a custom Redhat 6.2 with kernel 2.4.9 + aacraid patch.
We just recently this week lost a drive in our raid5 and in the process
the parity info was corrupted so the container fails to rebuild the raid
set on the new drive.  The data is all there and it's not an issues if
we loose it because we use multiple hot slave servers but I have to now
wipe all the drives and recreate the containers so I am asking
everyone's advice on a few issues.

	1: Does anyone have any experience with RH 7.2 with ext3 and the
PERC2/si on production machines? Is it worth it? The thought of a
journaling FS is quite nice, especially on a DB machine but I want to
know if there are any known issues with ext3 and the aacraid patch. It
appears as if there is going to be EXT3 support in the upcoming kernel
and the AC tree already has it. I have been running ext3 on other non
dell servers for a while now and really like it, plus it's proven since
it's just an extension of ext2. Any advise would be great.

	2: Anyone here try FreeBSD 4.4 and the PERC2/si? It looks as if 
there is support for it in the kernel, I am wondering how supported it 
is. Does dell provide a FreeBSD version of the CLI or will it run under 
FreeBSD with the linux binary compat built into the kernel? This is a 
little off topic but does anyone have any feelings about FreeBSD_4.4 + 
mySQL 3.23.44_innoDB + PowerEdge 6450 (4 xeon 700, 4gb ram, 4 36GB U160 
drives, perc2/si) ? The new linux kernels are getting better with
process 
threading but FreeBSD has a much more mature VM system and thread 
handling. Again, anyone have any opinions on this?

	I am just wondering what people think since we have to make a
trip 
to the datacenter anyway it would be a good time to make OS changes etc.


BTW: MySQL 3.23.44 compiled with innodb tables is an extremely fast 
platform, we run 500 MySQL processes on our server and I have seen it
push 
out 3500 queries/sec and only be at moderate load. Nice.

-- 
Cody Swanson
Systems Administrator
ICE.COM
1085 st. Alexandre suite 102
Montreal, Quebec
H2Z 1P4, Canada
E-mail: cody@ice.com
Tel: (514) 393 9788 ext 110
Fax: (514) 393 1295
Cell: (902) 626 7757




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